Amora in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Amora plotted against Setúbal and Portugal. The SNDi of new construction in Amora followed a zig-zag trend with an overall decrease, compared to Setúbal which rose steadily and Portugal which rose steadily. Most recently, Amora's incremental SNDi fell from 3.3 to 3.14 between 1991-2005 and 2006-2020. In terms of the aggregate network, Amora ranked 4th out of 4 cities in Setúbal and 8th out of 9 in Portugal as of 2020.

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

• Coatepeque, Guatemala
• Davenport, United States
• Ocotlán, México
• Tongbai, China
• Karhal, India
• Linjiang, China

In new street additions, Amora and Tongbai both fluctuated in its street-construction patterns, while Coatepeque built increasingly disconnected streets over time. For the full network, Amora became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Coatepeque became progressively more disconnected and Tongbai became progressively more connected. Notably, Amora had a more sprawly network than Coatepeque in 1975 but the two have since reversed their relative ranking.